# CloudLabs Aldehyde Synthesis vs NMR Calculator 2

The clearest difference is iOS requirement: CloudLabs Aldehyde Synthesis at 9.0 against NMR Calculator 2's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CloudLabs Aldehyde Synthesis ships an update every 29 months, NMR Calculator 2 every 33 months. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | CloudLabs Aldehyde Synthesis | NMR Calculator 2 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 29 months** | Every 33 months |
| Size | 82 MB | 2 MB |
| Requires iOS | **9.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Jiovany Orozco](https://appshunter.io/developer/1114670847) | [Jae-Seung Lee](https://appshunter.io/developer/1146296876) |

## What reviewers say

### CloudLabs Aldehyde Synthesis

[App page](https://appshunter.io/ios/app/cloudlabs-aldehyde-synthesis/id1596512819)

**Features:** macOS Compatibility

**In-app purchases:** none


### NMR Calculator 2

[App page](https://appshunter.io/ios/app/nmr-calculator-2/id6466729022)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CloudLabs Aldehyde Synthesis free?

CloudLabs Aldehyde Synthesis is free to download, with no in-app purchases.

### Is NMR Calculator 2 free?

NMR Calculator 2 is free to download, with no in-app purchases.

### Do CloudLabs Aldehyde Synthesis or NMR Calculator 2 have ads?

Neither CloudLabs Aldehyde Synthesis nor NMR Calculator 2 shows ads.

### Which is updated more often, CloudLabs Aldehyde Synthesis or NMR Calculator 2?

CloudLabs Aldehyde Synthesis ships an update every 29 months, and NMR Calculator 2 every 33 months. Most recently, CloudLabs Aldehyde Synthesis was updated on November 7, 2026 and NMR Calculator 2 on November 3, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*